Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It's possible to execute anything with the right of the Scheduler Application sheet page. A user without script or programming rights, edit your user profile with the object editor and add a new object of type XWiki.SchedulerJobClass, In "Job Script", groovy code can be added and will be executed in the server context on viewing. This has been patched in XWiki 14.10.3 and 15.0 RC1. Users are advised to upgrade. There are no known workarounds for this issue.
Remediation
References
https://jira.xwiki.org/browse/XWIKI-20295
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-fc42-5w56-qw7h
https://jira.xwiki.org/browse/XWIKI-20462
Related Vulnerabilities
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CVE-2023-40826 Vulnerability in maven package org.pf4j:pf4j
CVE-2023-33003 Vulnerability in maven package org.jenkins-ci.plugins:tag-profiler
CVE-2023-29205 Vulnerability in maven package org.xwiki.platform:xwiki-platform-rendering-xwiki